Will my system handle RNR?

[1Truck]

OK so the game runs kinda choppy and somewhat slow on my PC. It meets the minimum requirements. Do you think that 1GB of ram more would help the game to run smoothly?

System Information
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Operating System: Windows XP Professional (5.1, Build 2600) Service Pack 3 (2600.xpsp_sp3_gdr.091208-2036)
Language: English (Regional Setting: English)
BIOS: Award Modular BIOS v6.0
Processor: AMD Athlon(TM) XP 3200+, MMX, 3DNow, ~2.2GHz
Memory: 1024MB RAM
Page File: 238MB used, 1687MB available
Windows Dir: C:\WINDOWS
DirectX Version: DirectX 9.0c (4.09.0000.0904)
DX Setup Parameters: Not found
DxDiag Version: 5.03.2600.5512 32bit Unicode